Nothing "significant" has been found in a police search at a property where double-killer Christopher Halliwell once lived and a neighbouring home.
Police searched a garden and garage at one address and garage at an adjoining home, in Broad Street, Swindon.
Det Ch Insp Jeremy Carter said the search was carried out after intelligence had been received.
Halliwell is serving life for the murders of Becky Godden and Sian O'Callaghan.
Det Ch Insp Carter said: "We have meticulously explored the intelligence provided to us and have not discovered any items of significant interest as a result of the search activity undertaken.
"As previously mentioned, this activity was carried out following intelligence received as part of an ongoing investigation by the Brunel Major Crime Investigation Team.
"This investigation will continue, therefore it would be inappropriate to comment further."
Taxi driver Halliwell was given a whole life sentence last year for the 2003 murder of Ms Godden, 20, having already admitted killing Ms O'Callaghan, 22, in 2011.